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On February 1, 2022, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at or

kRT Voyager™ Proppants



Hexion kRT Voyager™ proppants are a curable resin coated sand available in 40/70 and 100 mesh sizes. kRT Voyager proppants are an in-basin resin coated sand that controls proppant flowback in reservoirs down to 110°F and enhances conductivity.

Typical Applications

Fracture treatments: 

  • At closure stress up to: 12,000 psi [83 MPa]
  • At bottom-hole static temperatures* from: 110 – 450°F [43 – 232°C]

Technical Advantages and Benefits

  • Enhanced conductivity
  • Proppant flowback control
  • Proppant fines reduction
  • Cyclic stress resistance
  • Minimizes proppant embedment
  • Reduces respirable silica dust exposure below PEL limits

Typical Properties

Property Standard Value Unit Test Method
Solubility In Oil 0.0 weight %
Specific gravity 2.60 - 2.59
Specific Volume 0.385[0.046] - 0.386[0.046] cm³/g [gal/lb]
Pipe Fill Factor 0.758[0.091] - 0.763[0.091] cm³/g [gal/lb]
Physical State solid granule
Composition resin coated, Permian Basin frac sand
Color grayish to pinkish*
Bulk Density 1.32[11.02] - 1.31[10.93] g/cm³ [lb/gal]
Solubility in Water, Brine & HCl 0.0 weight %
Resin Type thermosetting, curable
Solubility in HCl/HF acid, API RP 19C ≤ 0.3 weight %
Mesh Size 40/70 - 100

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